Microtech2010 2010

Advanced Nanocomposite Materials Tailored to Solid-State Lighting Applications

J.L. Davis, K. Guzan, K. Mills, L. Han
RTI International, US

Keywords: solid-state lighting, nanofiber, quantum dot, luminous efficacy


Nanofibers and nanocomposites made from nanofibers are emerging as a key enabler for the next generation of lighting technologies. The emergence of these materials in lighting applications is driven by the fact that nanofiber substrates possess unique optical properties. For example, the reflectance and transmittance of nanofiber materials that can be tailored by manipulating several parameters including the nanoscale structure of the material and substrate thickness [1]. A nanocomposite formed by combining luminescent particles (e.g., quantum dots) and nanofibers serves as a high performance material with exceptional properties for lighting applications. Through judicious choice of fabrication parameters, this nanocomposite (hereafter termed photoluminescent nanofiber (PLN)) has been used to fabricate luminaire prototypes with luminous efficacies in excess of 50 lumens/watt [2]. This paper focuses on the methods and procedures used to fabricate PLN nanocomposites with an optimal blend properties for lighting applications including correlated color temperature (CCT), color rendering index (CRI), and luminous efficacy.
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